Two friends think that they've discovered a dangerous spy hiding in a mine shaft.
as Karlik Rudniok
as Franek Miksa
as Stefan Gola
as Kryza
as Miksa (Franek's father)
as Miksina (Franek's mother)
as Sądej
as Rudniok (Karlik's father)
as Bolesławiec
as Headmaster Zajączkowski
as Kropa
as Sztelmach
as Kupść
as Stachurka
as Miner (uncredited)
as Man with a Flag (uncredited)
as School Inspector (uncredited)
as Woman in an Office (uncredited)
